Genetic and ethnic modulation of cardiovascular toxicity of vascular endothelial growth factor inhibitors

Yen-Chou Chen1, Cheng-Chih Chung1,2, Yung-Kuo Lin1

  • 1a Division of Cardiovascular Medicine, Department of Internal Medicine , Wan Fang Hospital, Taipei Medical University , Taipei , Taiwan.

Annals of Medicine
|September 21, 2017
PubMed

Insights

Vascular endothelial growth factor (VEGF) inhibitors, used in cancer therapy, can cause cardiovascular issues like hypertension and heart failure. Genetic factors may predict these adverse effects.

Area of Science:

  • Oncology
  • Cardiology
  • Pharmacology

Background:

  • Vascular endothelial growth factor (VEGF) inhibitors are crucial anticancer agents targeting tumor angiogenesis.
  • These inhibitors, including monoclonal antibodies and tyrosine kinase inhibitors (TKIs), have known cardiovascular implications.

Purpose of the Study:

  • To review the cardiovascular toxicity of VEGF inhibitors.
  • To explore the mechanisms underlying these adverse effects.
  • To clarify the role of genetic and ethnic factors in VEGF inhibitor-induced cardiovascular toxicity.

Main Methods:

  • Literature review of studies on VEGF inhibitors and cardiovascular toxicity.
  • Analysis of mechanisms including endothelial dysfunction, altered vasoreactivity, and cardiomyocyte apoptosis.
  • Examination of genetic and geographic data for predictive or prognostic factors.

Main Results:

  • VEGF inhibitors disrupt vascular homeostasis, impairing vasodilation and vasoconstriction.
  • Key cardiovascular toxicities include hypertension, heart failure, thromboembolism, and arrhythmia.
  • Genetic polymorphisms are implicated as potential predictors of cardiovascular toxicity.

Conclusions:

  • VEGF inhibitors pose significant cardiovascular risks by interfering with VEGF signaling pathways.
  • Understanding these mechanisms and individual genetic predispositions is vital for managing patient safety.
  • Further research into genetic factors can personalize cancer therapy and mitigate cardiovascular adverse events.

Related Concept Videos

Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu01:29

Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu

Genetic variations significantly influence drug response through pharmacokinetics, receptor interactions, and biologic milieu modifications. Pharmacokinetic alterations impact drug metabolism and clearance, affecting efficacy and toxicity. Variants in drug-metabolizing enzymes, such as CYP2C9 and CYP2C19, alter drug activation and elimination. For example, CYP2C9 loss-of-function variants require lower warfarin doses to prevent excessive bleeding, while CYP2C19 variants reduce clopidogrel...
24
Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
3.8K
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase01:11

Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase

Genetic polymorphisms in drug targets have emerged as critical determinants of interindividual variability in drug response and toxicity. Pharmacogenomic investigations increasingly focus on identifying these variations to personalize and optimize therapeutic interventions. A drug target may be a receptor, enzyme, or signaling protein involved in pharmacologic responses or disease-related pathways. While early pharmacogenetic studies focused primarily on drug metabolism, current research...
30
Drug toxicity: Idiosyncratic Reactions01:16

Drug toxicity: Idiosyncratic Reactions

Idiosyncratic drug reactions represent abnormal chemical responses that vary significantly among individuals, ranging from extreme sensitivity to low doses to insensitivity to high doses. These reactions often occur due to the drug's covalent binding with serum proteins, forming a foreign hapten that triggers an immunotoxicological response. The variability in drug reactions has a strong pharmacogenetic foundation, with genetic differences crucial in how individuals metabolize drugs. For...
48
Pharmacogenetics of Drug Metabolism: Overview01:27

Pharmacogenetics of Drug Metabolism: Overview

Genetic polymorphism in drug metabolism is crucial to the inter-individual variability observed in drug responses. Drug metabolism primarily involves the chemical modification of drugs and other xenobiotics to enhance their elimination by increasing their polarity. Two main classes of enzymes mediate this biotransformation process: Phase I enzymes, primarily cytochrome P450s, catalyze oxidation and reduction reactions, while other enzymes, such as esterases, mediate hydrolysis, and Phase II...
31
Pharmacogenomics: Identification of New Drug Targets01:29

Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
29